SMC Networks VFR4000 Series, Руководство по эксплуатации

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VFR4000-OMH0003-D
TROUBLE SHOOTING
(11)
(1),(7)
(6)
(1)
(12)
(13)
Worn coil
Low line voltage
Buzzing
Abing continuous buzzing sound
is emitted when the power is
turned on.
(14)
(11)
(15)
(9)
(10)
(5) Leakage Worn spool packing
Poor seal on actuator (cylinder, etc.) side
Intrusion of foreign matter
Air leaks through EXH. port
[3(EB), 5(EA) port] of main valve.
Trouble phenomenon
Broken coil wire
Foreign matter caughtin armature
Faulty wiring
Blown fuse of disconnection lead wire
Spool valve has not completely shifted.
(1)
(2)
(3)
(4)
(6)
Coil splashed by water
Low pilot pressure
Intrusion of foreign matter
Poor contact at contactor wire or connection part
Low line voltage
Higher voltage or wrong coil used Burnt coil
Excessive supply oil amount
Wrong Pressure supplied X port. (In the case of
external pilot specification)
Remedy Cause expected
Though pilot valve does shift,
main valve will not shift or wilbe
sluggish.
Swollen spool packing
Pilot valve is not operated.
Worn pilot valve packing
Foreign matter caught in pilot valve packing
Foreign matter caught in core
Air leaks through EXH. Port (PE
port) of pilot valve
(7)
(8)
Faulty operation
Insufficient bolt tightening Air leaks throuth gasket.